Comment # 2 on bug 1222087 from Antonio Feijoo

(In reply to Nicolas FORMICHELLA from comment #0)
> Steps to Reproduce:
> 1. Install Tumbleweed with /home (or other) partition encrypted

I think that in order to reproduce your issue, you also have to manually set
the DPS Partition ID using YaST or gdisk, because the default just sets the
"Linux" type, and the systemd-gpt-auto-generator does not recognize any
partitions and does not do create any device unit at boot in this case.

> After investigation I found that both `systemd-gpt-auto-generator` and
> `systemd-cryptsetup-generator` create a service for the same partition.

What is happening is documented in the systemd-gpt-auto-generator(8) man page:

"The /home/, /srv/, /var/, /var/tmp/ and swap partitions may be encrypted in
LUKS format. In this case, a device mapper device is set up under the names
/dev/mapper/home, /dev/mapper/srv, /dev/mapper/var, /dev/mapper/tmp or
/dev/mapper/swap. Note that this might create conflicts if the same partition
is listed in /etc/crypttab with a different device mapper device name."

If you have an encrypted partition with the DPS UUID, you need to disable the
systemd-gpt-auto-generator by adding `systemd.gpt_auto=0` to the kernel command
line, or remove its entry from /etc/crypttab.